Bike starts and runs than when I drive it loses power at high speed and dies. Hard time starting back but when it does it runs ok. Has done this 2 or 3 times now.

SOURCE: Bike wont start

Remove battery and get it charged the tested..More likely its failed. when engine is running check battery voltage it should be 12.8 to 14.2 volts with good battery

SOURCE: wont run /idle

i'd start with removing the carbs and giving them a thorough cleaning as when bikes sit for so long, the carbs begin to get gummy/varnished from the old gas.

check for blocked holes in the pilot jet & main jet and look for "hard & dried up" gas in passages. be careful of the float bowl gasket as to not tear it or you will need a replacement.

SOURCE: Bike keeps dieing

Measure the charging circuit.Stator output voltage (all three against ground), regulator-rectifier.
The stator should have an output of 13-14V at 2000rpm and rising while you turn the gas more open.The regulator should have a constant 13.5-14.5V at 3000rpm even when you turn on the high beams.Rising rpm should not change the reading on the battery's poles (regulator output)

SOURCE: 1992 kawasaki Vulcan 750 stops running

Check the intake manifold/s, even a small leak will make it run poor. Being stored for five years then putting it into use, you may have a blocked main jet. Sea-foam is a great product and I would have used that product to store the bike but not to get it running. It is slow acting so it doesnt work like carb cleaner.

Murtaza Akberali Versi

• 767 Answers
• Posted on Jul 14, 2009

SOURCE: The bike will run with a push start, but the

Take a compression test on the cylinder.
Check the spark plug and its gap.
Check the condition of the spark plug, is it whitish, brownish or blackish?
If its whitish means the engine is running 'lean', if it's brownish....means runs ok, blackish means its running too rich ..thus fouling up the spark plug.
Check the valve clearance too.
Since its not idling....check the intake rubber for leaks.
As also you have cleaned the carburator, recheck the jets fittings, blow the primary jet, recheck the float level if its correct.
You might too, have to reset the air-mixture screw. Its all the way in , being careful not to reach it too tight in it may damage the screw, thn trun it outwards 2 and a half turns or so....keeping the idling screw a little high and as you thn hear the engine sounding proper reset the idling to the required rpm.
Hope this helps! Good Luck.